Final answer:
The statement is false; one gram of protein contains four calories, not nine. Nine calories per gram is the energy content of fat.
Step-by-step explanation:
The statement that there are nine calories in every gram of protein is false. The caloric content of macronutrients is as follows: one gram of carbohydrates has four calories, one gram of protein also has four calories, and one gram of fat has nine calories. This information is useful when considering dietary choices and looking at nutrition labels on food packages.
Counting calories is a common practice for managing weight and health, and it relies on understanding the energy provided by different nutrients. Since the given statement is not true, the correct answer is option (B).